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The Ultimate Evolution aluminium bi-folding door is different – and that’s by design.

It offers incredible flexibility. Defined by contemporary and ultra-slim aluminium sightlines, the Ultimate Evolution will span the largest openings, combining core structural integrity, advanced thermal performance and weather sealing.
But that’s not what makes the Ultimate Evolution unique.
It’s different, because it’s built from the ground-up - and around its hardware – something that guarantees through-life performance and effortless operation.
Available in a wide choice of configurations and colours. We can also work with you to design a door to complement the individual character of your property.
White
Anthracite Grey
Rosewood
Golden Oak
Our mixing system allows a choice of colour options from the popular RAL colour range.

The Ultimate Evolution provides a seamless connection between your home’s indoor and outdoor spaces.
The Ultimate Evolution is fabricated to the most exacting standards. Designed to deliver exceptional through life performance, it’s supplied with a 10-year manufacturer’s guarantee built in.
Featuring multi-point shoot bolt locking mechanisms and the latest anti-tamper, anti-drill door cylinders, the Ultimate Evolution has also been fully tested to and exceeded, PAS24 and Part Q (Security) building regulations.
The Ultimate Evolution system employs the very latest in polyamide thermal technology. This reduces heat loss by creating a thermal barrier between the outside and inside of frames, which combined with the latest energy efficient double and triple glazing delivers u-values (the measure of heat loss) as low as 1.4W/m2K, keeping your home warm and cosy.
The Ultimate Evolution is Severe Weather Rated including water, wind and air pressure testing. This means that your new Ultimate Evolution bi-folding doors will stand up to the very worst that the Great British Weather throws at them!
The Ultimate Evolution is finished in a special marine-grade powder coating. This tough and highly durable polyester finish is guaranteed for 10-years.
Debar is a specialist bi-fold door hardware manufacturer with design innovation, manufacturing and distribution all carried out from our HQ in the UK.